Apparatus for storing and feeding yarn to yarn using machines

摘要

Apparatus for storing yarn drawn off from a spool and feeding it with a controlled tension to a yarn using machine. The apparatus comprises a drum having an axial central hole and a rotating arm drawing the yarn off from the spool and winding it up as windings on the drum, from which the yarn is then drawn off through the central hole. The displacement of the yarn windings along the drum surface is carried out by swinging blades alternatively projecting and moving upwardly through grooves provided on the drum. These blades keep the yarn windings separated from one another during translation on the drum, each of the windings being arranged between two successive blades. A bell is located at the top of the drum and brakes the balloon built up by the yarn drawn off from the drum, while flexible fingers act upon the drawn off yarn, controlling the tension thereof.